90 APID.E. 



16. Anthidium flavolineatum. 



Female. Length 4 lines. — Black ; the thorax margined with yellow, 

 the abdomen with five yellow more or less interrupted fasciae. 

 The inner orbits of the eyes, the lateral margins of the clypeus, 

 and a short narrow line behind the eyes, yellow. The mesothorax 

 with a narrow yellow line at its lateral margins, which also curves 

 a short distance on its anterior margin ; the posterior margin of 

 the seutellum and a spot at its lateral angles yellow ; wings fusco- 

 hy aline ; the marginal cell and the apex of the wing somewhat 

 darker ; the anterior tarsi and the apical joints of the intermediate 

 and posterior pairs pale ferruginous. Abdomen with a widely in- 

 terrupted fascia at the base, the second, third, and fourth segments 

 with fasciae which are only slightly interrupted, the second being 

 the most so, the fifth with an entire fascia, all the fasciae and the 

 sixth segment yellow ; clothed beneath with glittering whitish 

 pubescence. 



Hah. Mexico, Oajaca. 



17. Anthidium impatiens. 



Male. Length 4J lines. — Black, punctured, the abdomen with yel- 

 low fasciae, the fasciae with lateral transverse black markings. The 

 clypeus, the sides of the face, the mandibles, and a minute spot 

 behind the eyes yellow ; tips of the mandibles black. The sides of 

 the mesothorax and seutellum bordered with yellow ; on the thorax 

 anteriorly, and on the sides of the metathorax, there is a little 

 pale pubescence ; wings fusco-hyaline, darkest in the marginal cell 

 and at the apex of the wings ; the apical joints of the tarsi ferru- 

 ginous. Abdomen shining ; at the basal margins of the first and 

 second segments, laterally, a slightly curved yellow line, narrowest 

 within ; a broad slightly interrupted fascia on the third segment ; 

 the following segments are yellow, with their apical margins 

 black ; the fourth and fifth segments have at their basal margins a 

 small triangular black spot, and the third, fourth, and fifth have 

 laterally a narrow black stripe ; the sixth segment is subdentate 

 at its lateral angles ; the seventh with a sharp longitudinal central 

 carina, and with an acute angle or tooth laterally. 



Hah. South Mexico. 



18. Anthidium atriventre. 



Female. Length 5| lines. — Black ; the head, thorax, and apical 

 segments of the abdomen with yellow markings ; the abdomen with 

 black pubescence beneath. The clypeus, a broad line on each 

 side of the face, an ovate spot in front of the anterior ocellus, 

 and a narrow line on the margin of the vertex, yellow. The meso- 

 thorax bordered laterally with yellow ; wings dark fuscous. Ab- 



